Improvement in rotary pumps



enonenw. rnfrNAM, '-cr sonrn GLENS FALLS; Nnwronn.

vllanera Palatino'. 112,491,11atea March 7,1871.

iMPRovEMENr |`N ROTARY PuMPs.

v The `Schedule referredtq in these Letters Patent and making pai'l: of the same.

" Be it known ,that I, GEORGE W. PUTNAM, ot' South Glens Falls, in the conntyof Saratoga and in the State l oi'.New York, have-invented certain new and useful Improvements in Inmps'; and do hereby declare'that the following isa-` full, clear, and exact description 1 .thereof', `reference being had to the accompanying `drawing and to theletters of reference marked thereon making a part` of this specification. l

The nature of my invention consists in the conngement of a pump," as will be hereinafterl fully set forth.

"i `Inlorder to enable others skilled inthe art to which` my invention l appertains to make and use'the same, I will now `proceed tol-describe its construction and operation, referring Vto "the annexed! drawing, which represents a lcngitudinalvertical section'of my pump.

l y. A representfstheV inletfpipe, having two `b ranches,.a`` `a', which lead into thevcylinder B, one on eachside of `the partition C. l 1 n This partition extends from the center ofthe cylinder downward to between the openings et the branches aq', saido'penings "being within the cylinder, covered with -valves 'b la', as shown; 7

From `the upper side of thelcylinder leads the outletpipe l Ivnfongh-tlvlecenterof the cylinder passesa shaft, I, attached to whchis` a pistou, D, extending from y side te Siae bf the cylinder-3.'

` This piston is provided with two valves, dal', one

on each side of the center. v l ,v

The operation of this pump is readily understood. Through suitable means a rocking motion is contributed to the shaft I, making the 'piston D move on itscenterfrom side to side, or rather theends of the piston move in -a circlenp and down, -which creates a perpetual' stream of water without the assistance"of V an air-chamber.

By inserting the dischargepipe in top of the pump, down near the center, it forms-ani air-chamber sufficient for a "fire-engine.

. Having thus fully, described my invention, 4

What I claim as-new, and desire to secure by Letters Patent, is

The arrangement of the inlet-pipe A, with branches a a', eachwith a valveJJb, said branches leading intov the cylinder B, one on each side of the partition-O, in`

combination with the rocking piston D, Withvalves d d' and discharge-pipe E, all substantially asand for the purposes herein set forth; y j

In testimony that I.v claim the foregoing I have herenntoset my hand and seal this 18th dav of October, 1870.

resonera wr'UTNAM. [n s1 Witnesses:

G. L..EVERT, S. Motr'r SWEET. 

